Patents for G01R 15 - Details of measuring arrangements of the types provided for in groups , or (13,411) |
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01/02/2002 | EP1167982A1 Electric current measuring appliance using the Faraday effect |
01/02/2002 | EP1166132A1 An improved current sensing device for low-voltage power circuit breakers |
01/02/2002 | EP1166131A1 Current meter |
01/02/2002 | EP1166130A1 High voltage powerline sensor |
01/02/2002 | CN1329339A High-voltage light-channel split core type current transformer |
01/01/2002 | CA2144079C Optical electric field sensor using optical components having electrooptical effect. |
12/27/2001 | WO2001098789A1 Rf current sensor |
12/27/2001 | WO2001069272A3 Device and method for monitoring a capacitor bushing |
12/27/2001 | WO2000004398A3 Device and method for optically detecting an electric current and a component of an electric field |
12/27/2001 | EP1145019A3 Device and method for optically detecting an electric current and a component of an electric field |
12/25/2001 | US6333634 Method for measuring radio-frequency current |
12/20/2001 | WO2001069271A3 Instrument transformer |
12/20/2001 | US20010052843 Non-invasive powerline communications system |
12/20/2001 | US20010052780 Integrated circuit leadframes patterned for measuring the accurate amplitude of changing currents |
12/20/2001 | US20010052765 Non-contact type current measuring instrument |
12/19/2001 | EP0932818B1 Apparatus with a retracing optical circuit for the measurement of physical quantities having high rejection of environmental noise |
12/19/2001 | CN2466666Y Module of mv-class voltage sensor for isolative measuring mv voltage |
12/19/2001 | CN2466665Y Strong magnetic resistance sensor |
12/18/2001 | CA2144080C Electric field sensor |
12/18/2001 | CA2144076C Electric field sensor having sensor head with unbalanced electric field shield to shield branched optical waveguides against an applied electric field |
12/13/2001 | WO2001094956A1 Voltage monitoring arrangements for electrical switchgear |
12/13/2001 | WO2001050308A3 Magneto-resistive signal isolator |
12/13/2001 | WO2001031718A3 Shunt resistance device for monitoring battery state of charge |
12/13/2001 | US20010050618 Microelectricalmechanical system (MEMS) electrical isolator with reduced sensitivity to inertial noise |
12/13/2001 | US20010050552 Closed-loop magnetoresistive current sensor system having active offset nulling |
12/13/2001 | US20010050551 Fiber optic current sensor |
12/12/2001 | EP1162471A1 Measuring instrument with multiple signal terminals shared in multiple operation modes |
12/12/2001 | EP1161690A1 Low error, switchable measurement lead detect circuit |
12/12/2001 | CN2465193Y Automatic convertion measurer for composit rate changing current mutual inductor |
12/11/2001 | US6329817 Electronic sensor apparatus |
12/06/2001 | US20010048527 Semiconductor test apparatus |
12/06/2001 | US20010048308 Voltage sensor bushing assembly with integral capacitance screen |
12/06/2001 | US20010048304 Non-linear hall IC |
12/05/2001 | EP1159759A1 High-voltage capacitor voltage divider circuit having a high-voltage silicon-on-insulator (soi) capacitor |
12/05/2001 | EP1159625A1 Device for detecting impedance disturbance points in symmetrical data transmission lines |
12/05/2001 | CN1325121A AC current dividing current transformer |
11/29/2001 | US20010045835 Method and apparatus for detecting timing belt damage by inductive coupling |
11/29/2001 | DE10120190A1 Stromerkennungsschalter und ein Gerät, das diesen umfaßt Current detection switch and a device comprising these |
11/29/2001 | DE10023837A1 Intensity measurement device of electrical current flowing in conductor, has electronic circuit comprising analog/digital converter mounted on Hall sensor which stores current flow detection signal |
11/28/2001 | EP1018024B1 Combined current/voltage transformer for low level signals |
11/28/2001 | CN2462393Y Logic controller for general safety combination detection of household electrical appliance |
11/28/2001 | CN2462392Y Automatic detector for detecting positive electrode current distribution valve of aluminium electric tank |
11/28/2001 | CN2462391Y Hook meter measurer |
11/27/2001 | US6323653 Magnetic detection of short circuit defects in plate structure |
11/27/2001 | US6323636 Electric current pick-up shoe |
11/27/2001 | US6323635 MER2: magnetic error reduction doubled |
11/27/2001 | US6323634 Magnetic sensor apparatus, current sensor apparatus and magnetic sensor element |
11/22/2001 | WO2000052483A9 High voltage powerline sensor |
11/22/2001 | US20010043064 Polarimetric sensor for the optical detection of a magnetic field and polarimetric sensor for the optical detection of an electric current |
11/22/2001 | DE10117279A1 Non-linear Hall integrated circuit converts Hall voltage output by Hall element into output voltage, such that relationship between magnetic field intensity and output voltage is made non-linear |
11/22/2001 | DE10022316A1 Magnetic circuit arrangement for determining electric current, has air gap length corresponding to thickness of magnetic field sensor joined to printed circuit |
11/20/2001 | US6320370 Circuit with improved dynamic response for measuring current in pulse width modulated amplifiers |
11/20/2001 | US6320366 Method of measuring a large current using a glass fiber current sensor |
11/20/2001 | CA2246935C Multimeter with current sensor |
11/20/2001 | CA2040484C Fiber optic measuring device, rate gyro, navigation and stabilization system, and current sensor |
11/15/2001 | WO2001086670A1 Current transformer for measurement of alternating current |
11/15/2001 | WO2001086309A1 Magnetic circuit arrangement for determining an electrical current |
11/15/2001 | US20010040446 Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
11/14/2001 | EP1154278A2 Fibre-optic current sensor |
11/14/2001 | EP1154277A1 Device for measuring electric currents |
11/14/2001 | EP1153306A1 Current measuring method and device |
11/13/2001 | US6316939 Magnetic sensor measuring apparatus and current sensor non-contact measuring apparatus |
11/13/2001 | US6316931 Magnetic sensor apparatus and current sensor apparatus |
11/13/2001 | US6316930 Direct current meter with passive input and galvanic insulation, particularly for high voltage |
11/08/2001 | WO2001084164A1 Capacitor coupled voltage transformers |
11/08/2001 | WO2001082675A2 Optical current measuring for high voltage systems |
11/08/2001 | WO2001040812A3 Current sensor and method of manufacturing same |
11/08/2001 | WO2001040811A3 Screened core current sensor |
11/08/2001 | DE10021669A1 Faseroptischer Stromsensor Fibre-optic current sensor |
11/08/2001 | CA2446275A1 Capacitor coupled voltage transformers |
11/07/2001 | EP1151309A1 Polarization transformer and current sensor using the same |
11/07/2001 | CN2458711Y Full-closed current transformer |
11/06/2001 | US6313756 Method for controlling an electric meter, and electric meter |
11/06/2001 | US6313727 Current transformer for three-phase systems |
11/06/2001 | US6313623 High precision rogowski coil |
11/01/2001 | WO2000040979A9 Current measuring method and device |
10/31/2001 | EP1150126A2 Protected capacitive divider |
10/31/2001 | EP0980528B1 Voltage detector for measurement and protection purposes for use in medium-voltage switch gear |
10/31/2001 | DE10021124A1 Capacitative divider comprises a conductor which is constituted at least in parts as a fuse, and serves for connecting the capacitative component with the divider terminals |
10/31/2001 | CN2457606Y Dry load device of independent power supply |
10/30/2001 | US6310590 Method for continuously controlling color of display device |
10/30/2001 | US6310470 Method and device for measuring the difference in magnetic field strength with magnetoresistive sensors |
10/25/2001 | WO2001079872A1 Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
10/25/2001 | WO2001079869A1 Current measurement device |
10/25/2001 | US20010033471 Current detection switch and apparatus therewith |
10/25/2001 | US20010033171 Current measuring apparatus for battery |
10/24/2001 | EP1012609B1 Device with wide pass band for measuring electric current intensity in a conductor |
10/24/2001 | CN2456284Y 一种电流互感器 A current transformer |
10/24/2001 | CN2456170Y Three phase optical current mutual inductor |
10/23/2001 | US6307666 Voltage sensing systems and methods for passive compensation of temperature related intrinsic phase shift |
10/23/2001 | US6307382 Device and method for magnetically sensing current in plate structure |
10/23/2001 | US6307381 High voltage installation with a device for transmitting signals |
10/23/2001 | US6305338 Current measurement module for an internal combustion engine starter device |
10/18/2001 | WO2001077698A2 Power line testing device with signal generator and signal detector |
10/18/2001 | DE10061742A1 Potential measurement method for determining several phase potentials, by means of field measurements and calculation using coupling coefficients derived from measurements taken with only one phase energized |
10/17/2001 | EP1145020A1 Method and arrangement for optically detecting an electric current using light signals that have different wavelengths |
10/17/2001 | EP1145019A2 Device and method for optically detecting an electric current and a component of an electric field |
10/16/2001 | US6304472 Electric power converting system with integrator providing output indicative of current |
10/16/2001 | US6304062 Shunt resistance device for monitoring battery state of charge |
10/16/2001 | US6303926 Optical sampler |